diff --git a/CalFM.cpp b/CalFM.cpp
index a654b48..3f847cc 100644
--- a/CalFM.cpp
+++ b/CalFM.cpp
@@ -38,13 +38,13 @@ const struct TONE_TABLE {
 const uint8_t TONE_TABLE_DATA_LEN = 6U;
 
 CCalFM::CCalFM() :
-m_tone(NULL),
 m_frequency(0),
 m_length(0),
+m_tone(NULL),
 m_level(128*32),
 m_transmit(false),
-m_lastState(STATE_IDLE),
-m_audioSeq(0)
+m_audioSeq(0),
+m_lastState(STATE_IDLE)
 {
 }
 
diff --git a/FM.cpp b/FM.cpp
index 1aaf0be..e843996 100644
--- a/FM.cpp
+++ b/FM.cpp
@@ -57,7 +57,7 @@ void CFM::samples(bool cos, q15_t* samples, uint8_t length)
   for (; i < length; i++) {
     q15_t currentSample = samples[i];//save to a local variable to avoid indirection on every access
 
-    CTCSSState ctcssState = m_ctcssRX.process(currentSample);
+    uint8_t ctcssState = m_ctcssRX.process(currentSample);
 
     if (CTCSS_NOT_READY(ctcssState) && m_modemState != STATE_FM) {
       //Not enough samples to determine if you have CTCSS, just carry on
@@ -123,7 +123,19 @@ void CFM::process()
 
 void CFM::reset()
 {
+  m_state = FS_LISTENING;
+
+  m_callsignTimer.stop();
+  m_timeoutTimer.stop();
+  m_kerchunkTimer.stop();
+  m_ackMinTimer.stop();
+  m_ackDelayTimer.stop();
+  m_hangTimer.stop();
+
   m_ctcssRX.reset();
+  m_rfAck.stop();
+  m_callsign.stop();
+  m_timeoutTone.stop();
 }
 
 uint8_t CFM::setCallsign(const char* callsign, uint8_t speed, uint16_t frequency, uint8_t time, uint8_t holdoff, uint8_t highLevel, uint8_t lowLevel, bool callsignAtStart, bool callsignAtEnd)
diff --git a/FMCTCSSRX.cpp b/FMCTCSSRX.cpp
index f3f9047..ba0c03f 100644
--- a/FMCTCSSRX.cpp
+++ b/FMCTCSSRX.cpp
@@ -112,11 +112,11 @@ uint8_t CFMCTCSSRX::setParams(uint8_t frequency, uint8_t threshold, uint8_t leve
   return 0U;
 }
 
-CTCSSState CFMCTCSSRX::process(q15_t sample)
+uint8_t CFMCTCSSRX::process(q15_t sample)
 {
   q31_t sample31 = q31_t(sample) * m_rxLevelInverse;
 
-  m_result = m_result & (~CTS_READY); 
+  m_result &= ~CTS_READY;
 
   q31_t q2 = m_q1;
   m_q1 = m_q0;
@@ -150,13 +150,13 @@ CTCSSState CFMCTCSSRX::process(q15_t sample)
     q31_t value = t2 + t4 - t9;
 
     bool previousCTCSSValid = CTCSS_VALID(m_result);
-    m_result = m_result | CTS_READY;
+    m_result |= CTS_READY;
     if (value >= m_threshold)
-      m_result = m_result | CTS_VALID;
+      m_result |= CTS_VALID;
     else
-      m_result = m_result & ~CTS_VALID;
+      m_result &= ~CTS_VALID;
 
-    if(previousCTCSSValid != CTCSS_VALID(m_result))
+    if (previousCTCSSValid != CTCSS_VALID(m_result))
       DEBUG4("CTCSS Value / Threshold / Valid", value, m_threshold, CTCSS_VALID(m_result));
 
     m_count = 0U;
@@ -167,11 +167,6 @@ CTCSSState CFMCTCSSRX::process(q15_t sample)
   return m_result;
 }
 
-CTCSSState CFMCTCSSRX::getState()
-{
-  return m_result;
-}
-
 void CFMCTCSSRX::reset()
 {
   m_q0 = 0;
@@ -192,4 +187,3 @@ q15_t CFMCTCSSRX::q15Division(q15_t a, q15_t divisor)
 
   return a31 / divisor;
 }
-
diff --git a/FMCTCSSRX.h b/FMCTCSSRX.h
index b5fea60..2caa9e6 100644
--- a/FMCTCSSRX.h
+++ b/FMCTCSSRX.h
@@ -21,28 +21,9 @@
 
 #include "Config.h"
 
-enum CTCSSState
-{
-  CTS_NONE  = 0,
-  CTS_READY = 1,
-  CTS_VALID = 2,
-  CTS_READY_VALID = CTS_READY | CTS_VALID
-};
-
-inline CTCSSState operator|(CTCSSState a, CTCSSState b)
-{
-  return static_cast<CTCSSState>(static_cast<uint8_t>(a) | static_cast<uint8_t>(b));
-}
-
-inline CTCSSState operator&(CTCSSState a, CTCSSState b)
-{
-  return static_cast<CTCSSState>(static_cast<uint8_t>(a) & static_cast<uint8_t>(b));
-}
-
-inline CTCSSState operator~(CTCSSState a)
-{
-  return static_cast<CTCSSState>(~(static_cast<uint8_t>(a)));
-}
+const uint8_t CTS_NONE  = 0U;
+const uint8_t CTS_READY = 1U;
+const uint8_t CTS_VALID = 2U;
 
 #define CTCSS_READY(a) ((a & CTS_READY) != 0)
 #define CTCSS_NOT_READY(a) ((a & CTS_READY) == 0)
@@ -55,22 +36,20 @@ public:
 
   uint8_t setParams(uint8_t frequency, uint8_t threshold, uint8_t level);
   
-  CTCSSState process(q15_t sample);
-
-  CTCSSState getState();
+  uint8_t process(q15_t sample);
 
   void reset();
 
 private:
-  q15_t q15Division(q15_t a, q15_t divisor);
+  q63_t    m_coeffDivTwo;
+  q31_t    m_threshold;
+  uint16_t m_count;
+  q31_t    m_q0;
+  q31_t    m_q1;
+  uint8_t  m_result;
+  q15_t    m_rxLevelInverse;
 
-  q63_t      m_coeffDivTwo;
-  q31_t      m_threshold;
-  uint16_t   m_count;
-  q31_t      m_q0;
-  q31_t      m_q1;
-  CTCSSState m_result;
-  q15_t      m_rxLevelInverse;
+  q15_t q15Division(q15_t a, q15_t divisor);
 };
 
 #endif
diff --git a/SerialPort.cpp b/SerialPort.cpp
index 3baa55b..3323d01 100644
--- a/SerialPort.cpp
+++ b/SerialPort.cpp
@@ -101,7 +101,7 @@ const uint8_t MMDVM_DEBUG5       = 0xF5U;
 #define	HW_TYPE	"MMDVM"
 #endif
 
-#define DESCRIPTION "20200501 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
+#define DESCRIPTION "20200502 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
 
 #if defined(GITVERSION)
 #define concat(h, a, b, c) h " " a " " b " GitID #" c ""